[BUG]: Windows - Error: An error occured in Effect.tryPromise

[mynameistito]

Hey I was trying out to see if BTCA was working on Windows 11 and received the following issue;

This is for a local route I also tried it for one of the default git ones and got the same issue.

// ~/.config/btca/btca.config.jsonc
{
  "$schema": "https://btca.dev/btca.schema.json",
  "providerTimeoutMs": 300000,
  "maxSteps": 40,
  "resources": [
    {
      "type": "git",
      "name": "svelte",
      "url": "https://github.com/sveltejs/svelte.dev",
      "branch": "main",
      "searchPath": "apps/svelte.dev",
      "specialNotes": "This is the svelte docs website repo, not the actual svelte repo. Focus on the content directory, it has all the markdown files for the docs."
    },
    {
      "type": "git",
      "name": "tailwindcss",
      "url": "https://github.com/tailwindlabs/tailwindcss.com",
      "branch": "main",
      "searchPath": "src/docs",
      "specialNotes": "This is the tailwindcss docs website repo, not the actual tailwindcss repo. Use the docs to answer questions about tailwindcss."
    },
    {
      "type": "git",
      "name": "nextjs",
      "url": "https://github.com/vercel/next.js",
      "branch": "canary",
      "searchPath": "docs",
      "specialNotes": "These are the docs for the next.js framework, not the actual next.js repo. Use the docs to answer questions about next.js."
    },
    {
      "type": "local",
      "name": "mynameistito-site",
      "path": "F:\\GitHub\\mynameistito\\mynameistito-site",
      "specialNotes": "This is a personal site for mynameistito"
    }
  ],
  "model": "mimo-v2-flash-free",
  "provider": "opencode"
}

ENV:

OS: Windows 11 (Microsoft Windows NT 10.0.26100.0)
Node: 24.14.0
Bun: 1.3.10

[mynameistito]

I also tried it via CLI and got the following;

but it's a new free model?

PS C:\Users\mynameistito> btca ask -q tell me about this codebase in 3 words -r svelte
loading resources...
creating collection...

207490 |     }
207491 |     const errorMessage = getErrorMessage3(error41);
207492 |     const newErrors = [...errors4, error41];
207493 |     const tryNumber = newErrors.length;
207494 |     if (tryNumber > maxRetries) {
207495 |       throw new RetryError({
                                   ^
AI_RetryError: Failed after 3 attempts. Last error: Rate limit exceeded. Please try again later.
      cause: undefined,
     reason: "maxRetriesExceeded",
     errors: [
  173369 |       text: responseBody,
173370 |       schema: errorSchema
173371 |     });
173372 |     return {
173373 |       responseHeaders,
173374 |       value: new APICallError({
                                      ^
AI_APICallError: Rate limit exceeded. Please try again later.
      cause: undefined,
        url: "https://opencode.ai/zen/v1/chat/completions",
 requestBodyValues: [Object ...],
 statusCode: 429,
 responseHeaders: [Object ...],
 responseBody: "{\"type\":\"error\",\"error\":{\"type\":\"FreeUsageLimitError\",\"message\":\"Rate limit exceeded. Please try again later.\"}}",
 isRetryable: true,
       data: [Object ...],
 vercel.ai.error: true,
 vercel.ai.error.AI_APICallError: true,

      at B:/~BUN/root/index.js:173374:30
      at processTicksAndRejections (native:7:39)
, 173369 |       text: responseBody,
173370 |       schema: errorSchema
173371 |     });
173372 |     return {
173373 |       responseHeaders,
173374 |       value: new APICallError({
                                      ^
AI_APICallError: Rate limit exceeded. Please try again later.
      cause: undefined,
        url: "https://opencode.ai/zen/v1/chat/completions",
 requestBodyValues: [Object ...],
 statusCode: 429,
 responseHeaders: [Object ...],
 responseBody: "{\"type\":\"error\",\"error\":{\"type\":\"FreeUsageLimitError\",\"message\":\"Rate limit exceeded. Please try again later.\"}}",
 isRetryable: true,
       data: [Object ...],
 vercel.ai.error: true,
 vercel.ai.error.AI_APICallError: true,

      at B:/~BUN/root/index.js:173374:30
      at processTicksAndRejections (native:7:39)
, 173369 |       text: responseBody,
173370 |       schema: errorSchema
173371 |     });
173372 |     return {
173373 |       responseHeaders,
173374 |       value: new APICallError({
                                      ^
AI_APICallError: Rate limit exceeded. Please try again later.
      cause: undefined,
        url: "https://opencode.ai/zen/v1/chat/completions",
 requestBodyValues: [Object ...],
 statusCode: 429,
 responseHeaders: [Object ...],
 responseBody: "{\"type\":\"error\",\"error\":{\"type\":\"FreeUsageLimitError\",\"message\":\"Rate limit exceeded. Please try again later.\"}}",
 isRetryable: true,
       data: [Object ...],
 vercel.ai.error: true,
 vercel.ai.error.AI_APICallError: true,

      at B:/~BUN/root/index.js:173374:30
      at processTicksAndRejections (native:7:39)

],
 vercel.ai.error: true,
 vercel.ai.error.AI_RetryError: true,

      at _retryWithExponentialBackoff (B:/~BUN/root/index.js:207495:27)
      at processTicksAndRejections (native:7:39)

173369 |       text: responseBody,
173370 |       schema: errorSchema
173371 |     });
173372 |     return {
173373 |       responseHeaders,
173374 |       value: new APICallError({
                                      ^
AI_APICallError: Rate limit exceeded. Please try again later.
      cause: undefined,
        url: "https://opencode.ai/zen/v1/chat/completions",
 requestBodyValues: {
  model: "mimo-v2-flash-free",
  user: undefined,
  max_tokens: undefined,
  temperature: undefined,
  top_p: undefined,
  frequency_penalty: undefined,
  presence_penalty: undefined,
  response_format: undefined,
  stop: undefined,
  seed: undefined,
  reasoning_effort: undefined,
  verbosity: undefined,
  messages: [
    [Object ...], [Object ...]
  ],
  tools: [
    [Object ...], [Object ...], [Object ...], [Object ...]
  ],
  tool_choice: "auto",
  stream: true,
  stream_options: undefined,
},
 statusCode: 429,
 responseHeaders: {
  "cf-ray": "9da1c2d8e9193b70-SEA",
  connection: "keep-alive",
  "content-length": "112",
  "content-type": "text/plain;charset=UTF-8",
  date: "Tue, 10 Mar 2026 10:50:54 GMT",
  "retry-after": "47346",
  server: "cloudflare",
},
 responseBody: "{\"type\":\"error\",\"error\":{\"type\":\"FreeUsageLimitError\",\"message\":\"Rate limit exceeded. Please try again later.\"}}",
 isRetryable: true,
       data: {
  error: [Object ...],
},
 vercel.ai.error: true,
 vercel.ai.error.AI_APICallError: true,

      at B:/~BUN/root/index.js:173374:30
      at processTicksAndRejections (native:7:39)

Error: An error occurred in Effect.tryPromise
PS C:\Users\mynameistito>

[jmtemmos]

same here under linux. Unusable
too bad

[mynameistito]

same here under linux. Unusable too bad

I'm glad to hear it's not isolated 😅